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Yamaha 40BE

steveninwales

New member
"Hi guys, can someone tell me

"Hi guys, can someone tell me the age of my Yamaha 40BE serial no.676BS100400
I have found water on the lower spark plug and I was going to take the cylinder head off. Is there a sequence of taking the nuts of\on. What is the torque settings. Thanks"
 
Re: "Hi guys, can someone tell me

hi, I have similar problem with my yamaha 40BE. I did a compression test on both cylinders and it sat at 9 bar for a good 30 min which indicates cylinder head is ok. Has the motor been laid up for a while?
 
hi, I have similar problem with my yamaha 40BE. I did a compression test on both cylinders and it sat at 9 bar for a good 30 min which indicates cylinder head is ok. Has the motor been laid up for a while?
 
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